/Engine/Source/Editor/Experimental/EditorInteractiveToolsFramework/Public/EditorGizmos/TransformGizmo.h
Determine hit part and update hover state based on current input ray
virtual [FInputRayHit](API\Runtime\InteractiveToolsFramework\FInputRayHit) UpdateHoveredPart ( const [FInputDeviceRay](API\Runtime\InteractiveToolsFramework\FInputDeviceRay) & DevicePos )